Study of Thermal Properties of Graphene-Based Structures Using the Force Constant Method

TL;DR

This paper presents a theoretical study of thermal transport in graphene-based structures using the force constant method combined with Green's function techniques, highlighting its effectiveness for thermoelectric applications.

Contribution

It introduces a robust computational approach for analyzing phonon transport in graphene structures, suitable for thermoelectric and heat management research.

Findings

Ballistic phonon transport varies across graphene structures.

The methodology effectively models heat transfer in graphene-based devices.

Potential applications in thermoelectric device design.

Abstract

The thermal properties of graphene-based materials are theoretically investigated. The fourth-nearest neighbor force constant method for phonon properties is used in conjunction with both the Landauer ballistic and the non-equilibrium Green's function techniques for transport. Ballistic phonon transport is investigated for different structures including graphene, graphene antidot lattices, and graphene nanoribbons. We demonstrate that this particular methodology is suitable for robust and efficient investigation of phonon transport in graphene-based devices. This methodology is especially useful for investigations of thermoelectric and heat transport applications.